General Formulation’s MetroMark Transit Vinyl is a 3.5-mil flexible matte opaque vinyl with a removable adhesive. Applications include bus kings, queens and tail posters as well as many short and long term removable graphics. CBS Outdoor and Titan approved for bus kings, queens and tail posters. MetroMark is compatible with a wide variety of printers that use solvent, low-solvent, and UV-curable inks.